Consanguineous marriage and its effect on reproductive behavior and uptake of prenatal screening

The study aimed to determine the prevalence of consanguinity among pregnant women, its effect on reproductive behavior and the uptake of prenatal screening. The sample consisted of 842 pregnant women recruited to a prospective cohort study conducted in twenty-three cities from different regions in Turkey between June 2017 and March 2018. Of the women, 17.7% (n = 149) were in consanguineous marriages. The consanguineous couples were younger at the time of their marriages than non-consanguineous couples, and 49% of the consanguineous marriages were arranged. The educational levels of both spouses in consanguineous marriages were lower than those in non-consanguineous marriages. There was a statistically significant difference in the prevalence of the pregnant women having a prenatal screening test between women in consanguineous marriages (53%) and those in non-consanguineous marriages (78.2%). There were no statistically significant differences between the two groups in terms of having health problems during pregnancy, the number of pregnancies, abortions and/or stillbirths, the week of delivery and the birthweight of the baby. Healthcare providers play a key role in eliciting whether or not pregnant couples are consanguineous, providing a tailored risk assessment, education, and counseling about screening and diagnostic tests for early diagnosis and management of the fetus, explaining the testing process and possible outcomes, and helping couples make informed decisions regarding their reproductive options or pregnancy management.